So Nissan, Ford, and now VW have all bumped up their 80-mile cars to 100-mile cars. Sounds to me like battery tech improves equally, regardless of the car around it
In order to get the 2.5x increase from 80 to 200 miles, you need to do more than improve the battery. You need to make it physically larger. This requires a new platform to accomodate a larger battery. For Nissan, we have seen the IDS concept. And for VW, they keep talking about the upcoming MEB platform, build for EVs. So I have faith that VW will follow suit with a 200 mile BEV in time. Remember that the eGolf lagged the Leaf by almost 4 years! VW is slow to come to the game, but what they have brought to the table thus far have been, IMHO, solid offerings.